Home / 7,088.40-9,756.20-6,243.60

Finding the Fourth Proportional to 7,088.40, 9,756.20 and 6,243.60

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Solution

The fourth proportional to 7,088.40, 9,756.20 and 6,243.60 is: 8,593.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,088.40 : 9,756.20 = 6,243.60 : x
  2. Step 2: Convert to fraction form
    7,088.40/9,756.20 = 6,243.60/x
  3. Step 3: Cross multiply
    7,088.40x = 9,756.20 × 6,243.60
  4. Step 4: Simplify right side
    7,088.40x = 60,913,810.32
  5. Step 5: Solve for x
    x = 60,913,810.32/7,088.40
  6. Step 6: Final answer
    x = 8,593.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.